The 62-year-old is a long-term campaigner against the course and told a small claims hearing at Edinburgh Sheriff Court she has been left "slightly paranoid" about urinating out of doors.

Giving evidence, she says she met fellow campaigner Sue Edwards for a walk at the course on April 11 2016, having decided to accompany her friend for "safety reasons" after staff had photographed her on a previous walk.

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She said she now finds it "more difficult" to go the toilet outside when on multi-day camping trips.

She said: "I'm always very careful that I am not overlooked.

"I go to extraordinary lengths - I'm slightly paranoid that there might be somebody hiding behind a tree or something. I sounds ridiculous but that's how I feel."

She said she had opposed Mr Trump's course from the planning stage due to concerns over environmental damage, at one stage leading a protest march, but had always done so legally.

Paul Motion QC, representing Trump International, claimed Beyts was a "long-term opponent" of the Menie development and was involved with a Facebook page against the course. Ms Beyts agreed with the claims.